DR. GREGORY YU (MD, PHARMD, MBA, MPH) – Emergency Medicine Physician, NPI 1801126735
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,051 EMERGENCY MEDICINE in TX
Provider Addresses for DR. GREGORY YU (MD, PHARMD, MBA, MPH)
4502 Medical Dr
San Antonio, TX 782294402
Phone: (210) 358-4000
Type: Location
9422 Spring Green Blvd
Katy, TX 774943810
Phone: (346) 615-0919
Type: Location
1504 Ben Taub Loop
Houston, TX 77030
Phone: (713) 873-2000
Type: Location
5282 Medical Dr Ste 180
San Antonio, TX 782295384
Phone: (210) 450-9850
Type: Location
12314 POTRANCO RD STE 102
SAN ANTONIO, TX 782534125
Phone: (210) 981-3001
Type: Mailing
Washington Hospital Center, 110, Irving Street Northwest, Washington, Washington, D.C., 20010, United States
DEPARTMENT OF EMERGENCY MEDICINE
WASHINGTON, DC 200103017
Phone: (202) 877-8080
Fax: (202) 877-7633
Type: Mailing
3154 SE MILITARY DR STE 103
SAN ANTONIO, TX 782233975
Phone: (210) 337-0911
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 31 Open Payments records for all available years, with a total value of $2,609.
Total Amount is formed as General ($2,609) + Research ($0) + Ownership ($0) = $2,609.
Last reported payment date: 2024-12-10 • Largest payer in this snapshot: Relievant Medsystems, Inc. ($1,145).
Total Amount
$2,609
General + Research + Ownership
Payments
31
Total payment records
General Amount
$2,609
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-10
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Relievant Medsystems, Inc. | $1,145 |
| Spinal Simplicity, LLC | $457 |
| PAINTEQ LLC | $339 |
| Nevro Corp. | $215 |
| Saluda Medical Americas, Inc. | $172 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2020-05-08
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20191018000399 | I | Emergency Medicine | MD | TBD |
| I20200508000679 | I | Emergency Medicine | TX | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| J3301 | Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 56 | 14 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 36 | 29 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 24 | 24 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 17 | 17 | $0 |
Insurance plans in this area (ZIP 78229)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | TX | |
| - | TX | |
| - | TX | |
| Internal Medicine, Hospitalist | TX | |
| - | TX | |
| - | TX | |
| Internal Medicine, Hematology/Oncology | TX | |
| - | TX | |
| Hematology/Oncology, Medical Oncology | TX | |
| - | TX |
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